(Now if only Replicate in Time still worked.) On Tue, Feb 8, 2011 at 4:46 AM, Achim Breidenbach <[email protected]> wrote:
> Hi Alastair, > > oh, once you have played with the "Replicate in Space" patch for a while, I > am sure you will have lots of fun with it! > > Try this one (can be rotated with the mouse cursor): > > > > > > best, > > Achim Breidenbach > Boinx Software > > > On 08.02.2011, at 10:30, Alastair Leith wrote: > > Nice one Achim > > I'm positively sure I've never been able to get to the true potential of > the Replicate in Space patch for one reason: a lack of Mathematical ability. > All examples welcome in future. > > > *Once men are caught up in an event, they cease to be afraid. Only the > unknown frightens men.** * > *Antoine de > Saint-Exupery*<http://www.brainyquote.com/quotes/quotes/a/antoinedes132840.html> > * * > > On 08/02/2011, at 7:13 PM, Achim Breidenbach wrote: > > Hello Jim, > > I am sorry, I missed your point about drawing a parabola. Just to have > another idea I did a compostition which draws a 2D math function with a GLSL > shader patch containing a GLSL Grid patch. (Use the mouse to rotate the > object). The magic happens in the vertex-shader of the GLSL shader: the > vertex points gets moved around by a math function, in this case z = x * y. > Maybe you can use this as a starting point to draw a parabola. > > <2D math function.qtz> > > best. > > Achim Breidenbach > Boinx Software > > > > On 08.02.2011, at 08:38, Achim Breidenbach wrote: > > Hi, > > you can also use the "Replicate in Space" patch to draw an arch. I think it > is one of the fastest ways, because the "iterations" are all done by simply > transforming the view matrix in the GPU and doesn't need any recalculations > of any QC patches. > > <Arch with Replicate Patch.qtz> > > Please note that you have to do a bit of math to calculate the line start > and line end parameter based on the radius of the arch. I just guess some. > (btw. in George's composition this math is also missing) > > best, > > Achim Breidenbach > Boinx Software > > > On 08.02.2011, at 05:26, George Toledo wrote: > > You could also do something like this (see attachment). It uses iterator, > lfo, and line to make an arch. I set it to modulate between a circle and > arch. The interpolation all have built in curves, and one can build custom > curves as well. Double also, the timelines patch can be used in the same > way. > > (I can't remember 100%, but I think that I used GL Tools plugin on the > composition that was attached by James, and you can find that plugin (patch) > at http://kineme.net ) > > On Mon, Feb 7, 2011 at 10:01 PM, James Sheridan <[email protected] > > wrote: > >> >> Attached is a composition by Geroge Toledo that may provide some insight >> >> >> >> On 8/02/11 12:51 PM, Jim Thomason wrote: >> >>> What's my best bet for drawing some sort of an arc? The only built in >>> "primitive" type I could find are straight lines. I'd most need to >>> draw parabolas, so I can always use some javascript to solve the >>> quadratic equation and spit out a bunch of small line segments to draw >>> one, but I wasn't sure if that was the best approach. Am I on the >>> right track, or is there something built in that I missed? >>> >>> -Jim.... >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Quartzcomposer-dev mailing list ([email protected] >>> ) >>> Help/Unsubscribe/Update your Subscription: >>> >>> http://lists.apple.com/mailman/options/quartzcomposer-dev/james.sheridan%40anu.edu.au >>> >>> This email sent to [email protected] >>> >> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> >> http://lists.apple.com/mailman/options/quartzcomposer-dev/gtoledo3%40gmail.com >> >> This email sent to [email protected] >> > > > > -- > George Toledo > [email protected] > www.georgetoledo.com > > The information contained in this E-mail and any attachments may be > confidential. > If you have received this E-mail in error, please notify us immediately by > telephone or return E-mail. > You should not use or disclose the contents of this E-mail or any of the > attachments for any purpose or to any persons. > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/quartzcomposer-dev/achim%40boinx.com > > This email sent to [email protected] > > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > > http://lists.apple.com/mailman/options/quartzcomposer-dev/qc.student.au%40gmail.com > > This email sent to [email protected] > > > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > > http://lists.apple.com/mailman/options/quartzcomposer-dev/gtoledo3%40gmail.com > > This email sent to [email protected] > -- George Toledo [email protected] www.georgetoledo.com The information contained in this E-mail and any attachments may be confidential. If you have received this E-mail in error, please notify us immediately by telephone or return E-mail. You should not use or disclose the contents of this E-mail or any of the attachments for any purpose or to any persons.
_______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
